The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Jun. 06, 2012
Allen Jong-woei Whang, Taipei, TW;
Yi-yung Chen, Taipei, TW;
Horng-ching Hsiao, Taipei, TW;
Jiun-shi Liu, Taipei, TW;
Nai-lun Ku, Taipei, TW;
Allen Jong-Woei Whang, Taipei, TW;
Yi-Yung Chen, Taipei, TW;
Horng-Ching Hsiao, Taipei, TW;
Jiun-Shi Liu, Taipei, TW;
Nai-Lun Ku, Taipei, TW;
National Taiwan University of Science and Technology, Taipei, TW;
Abstract
A traffic signal system with dual light sources includes a signal displaying module, an ambient light module and a supplementary light module. The ambient light from environment is assembled by the ambient light module for generating a first light beam. A second light beam is provided by the supplementary light module disposed near the ground for easy maintaining and avoiding danger. The supplementary light module includes a sensor and a control circuit. The sensor senses the brightness of the first light beam passing through the signal displaying module and generates a photosensitive signal. The brightness of the second light beam is regulated by the control circuit according to the photosensitive signal. The brightness of the first light beam is supplied by regulating the brightness of the second light beam, so the signal displaying module has high-brightness light source and achieves the energy conservation.